This power supply unit from Cisco is designed to provide reliable and efficient power to your switch or hub. With a maximum output power of 6000W, it is capable of powering even the most demanding networking equipment. The unit is 60 inches in height, 18 inches in length, and 16 inches in width, making it compact enough to fit in most server rooms or data centers. As a redundant power supply, this unit ensures that your networking equipment stays operational even in the event of a power outage. It is compatible with Cisco Catalyst 4500E Series switches and hubs, and comes with a unit quantity of 1. This AC power supply is an essential component of any enterprise networking setup, and is sure to provide the consistent performance and reliability you need to keep your business up and running.